Earlier quoted context omitted.
Italy has one of those proportional parliaments. It's not exactly a utopia.
No place is "exactly a utopia", but the issue was the media being blamed as the root cause of the partisan duopoly in the US, which is pretty clearly not the case. OTOH, systems with greater proportionality in representation also tend to have higher public opinion of how well the local government works, which is probably not coincidental; for a good general survey, see Lijphart's Patterns of Democracy .
Maybe they tend to, but when they drew that graph, Italy is definitely an outlier. People are not at all fond of how the government works, putting it mildly!
Very proportional systems have large problems of their own too, including all the "horse trading" that goes on to form a coalition. This can and does involve a party that got, say 10%, driving a very hard bargain with the party that got 45%, giving far more relative weight to the people who voted for the 10% party.
You're right that the media is not The Problem, no argument there.